From 631fbdcb8e158733b4ec1c9996c6c7cc105cd114 Mon Sep 17 00:00:00 2001
From: Markus Toman <m.toman@neuratec.com>
Date: Fri, 7 Feb 2020 11:08:21 +0100
Subject: [PATCH] Fix vocoder normalization when no vocoder is used

When G&L is used, ap_vocoder is None and crashes
---
 synthesize.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/synthesize.py b/synthesize.py
index cb0ee8af..eec022ab 100644
--- a/synthesize.py
+++ b/synthesize.py
@@ -31,8 +31,8 @@ def tts(model,
         postnet_output = ap.out_linear_to_mel(postnet_output.T).T
     # correct if there is a scale difference b/w two models
     postnet_output = ap._denormalize(postnet_output)
-    postnet_output = ap_vocoder._normalize(postnet_output)
     if use_vocoder_model:
+        postnet_output = ap_vocoder._normalize(postnet_output)
         vocoder_input = torch.FloatTensor(postnet_output.T).unsqueeze(0)
         waveform = vocoder_model.generate(
             vocoder_input.cuda() if use_cuda else vocoder_input,